Applicator gun



FIG. 1 is a top, right, rear perspective view of an applicator gun showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken line showing is for the purpose of illustrating portions of the applicator gun and forms no part of the claimed design. 

CLAIM The ornamental design for an applicator gun, as shown and described. 